From: Reliability and validity of knee extensor strength measurements using a portable dynamometer anchoring system in a supine position
Measurement
Mean (N)
SD (N)
Range (N)
Trial 1 – rater 1
492.00
157.1
213.3–813.8
Trial 2 – rater 1
486.87
153.0
239.3–761.2
Trial 3 – rater 2
499.32
159.2
238.0–799.0